/**
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.apache.geronimo.daytrader.javaee6.web.prims;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

import javax.servlet.annotation.WebServlet;

import org.apache.geronimo.daytrader.javaee6.utils.Log;
/**
 *
 * PingHTTPSession1 - SessionID tests fundamental HTTP session functionality 
 * by creating a unique session ID for each individual user. The ID is stored 
 * in the users session and is accessed and displayed on each user request.
 *
 */
@WebServlet("/servlet/PingSession1")
public class PingSession1 extends HttpServlet {
    private static int count;
    // For each new session created, add a session ID of the form "sessionID:" + count
    private static String initTime;
    private static int hitCount;
/**
 * forwards post requests to the doGet method
 * Creation date: (11/6/2000 10:52:39 AM)
 * @param res javax.servlet.http.HttpServletRequest
 * @param res2 javax.servlet.http.HttpServletResponse
 */
public void doPost(HttpServletRequest req, HttpServletResponse res)
    throws ServletException, IOException {
    doGet(req, res);
}
/**
* this is the main method of the servlet that will service all get requests.
* @param request HttpServletRequest
* @param responce HttpServletResponce
**/
public void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
    HttpSession session = null;
    try
    {
        try
        {
            //get the users session, if the user does not have a session create one.
            session = request.getSession(true);
        }
        catch (Exception e)
        {
            Log.error(e, "PingSession1.doGet(...): error getting session"); 
            //rethrow the exception for handling in one place.
            throw e;
        }

        // Get the session data value
        Integer ival = (Integer) session.getAttribute("sessiontest.counter");
        //if their is not a counter create one.
        if (ival == null)
        {
            ival = new Integer(count++);
            session.setAttribute("sessiontest.counter", ival);
        }
        String SessionID = "SessionID:" + ival.toString();

        // Output the page
        response.setContentType("text/html");
        response.setHeader("SessionKeyTest-SessionID", SessionID);

        PrintWriter out = response.getWriter();
        out.println(
            "<html><head><title>HTTP Session Key Test</title></head><body><HR><BR><FONT size=\"+2\" color=\"#000066\">HTTP Session Test 1: Session Key<BR></FONT><FONT size=\"+1\" color=\"#000066\">Init time: "
                + initTime
                + "</FONT><BR><BR>");
                hitCount++;
        out.println(
            "<B>Hit Count: "
                + hitCount
                + "<BR>Your HTTP Session key is "
                + SessionID
                + "</B></body></html>"); 
    }
    catch (Exception e)
    {
        //log the excecption
        Log.error(e, "PingSession1.doGet(..l.): error."); 
        //set the server responce to 500 and forward to the web app defined error page 
        response.sendError(
            500, 
            "PingSession1.doGet(...): error. " + e.toString()); 
    }
}
/** 
 * returns a string of information about the servlet
 * @return info String: contains info about the servlet
 **/

public String getServletInfo()
{
    return "HTTP Session Key: Tests management of a read only unique id";
}
/**
* called when the class is loaded to initialize the servlet
* @param config ServletConfig:
**/
public void init(ServletConfig config) throws ServletException {
    super.init(config);
    count = 0;
    hitCount = 0;
    initTime = new java.util.Date().toString();

}
}